武汉理工大学：《船舶辅机》课程教学资源（PPT课件，英文版）6.3 Turbulo Separator

6.3 Turbulo Separator

6.3 Turbulo Separator

6.3 Turbulo Separator Principle e )The rising velocity of the globules carries them upwards where they become trapped by the under-surfaces of the plates and coalesce until the enlarged globules have sufficient rising velocity to travel along the plate surface and break away at the periphery i The oil rises, is caught underneath an annular baffle and is led up through the turbulent inlet area by risers to collect in the dome of the separator. The water leaves the conical plate pack via a central pipe which is connected to a flange at the base of the separator

6.3 Turbulo Separator Principle ➔The rising velocity of the globules carries them upwards where they become trapped by the under-surfaces of the plates and coalesce until the enlarged globules have sufficient rising velocity to travel along the plate surface and break away at the periphery. ➔The oil rises, is caught underneath an annular baffle and is led up through the turbulent inlet area by risers to collect in the dome of the separator. The water leaves the conical plate pack via a central pipe which is connected to a flange at the base of the separator

6.3 Turbulo Separator Some mountings e Two test cocks are provided to observe the depth of oil collected in the separator dome. When oil is seen at the lower test cock, the oil drain valve must be opened >An automatic air release val ve is located in the separator dome. An electronically operated oil drainage valve is also frequently fitted which works on an electric signal given by liquid level probes in the separator e i Visual and audible oil overload indicators may also be fitted. To assist separation steam coils or electric heaters are fitted in the upper part of separator where high viscosity oils are to be separates additional heating coils are installed in the lower part

6.3 Turbulo Separator Some mountings ➔Two test cocks are provided to observe the depth of oil collected in the separator dome. When oil is seen at the lower test cock, the oil drain valve must be opened. ➔An automatic air release valve is located in the separator dome. An electronically operated oil drainage valve is also frequently fitted which works on an electric signal given by liquid level probes in the separator. ➔Visual and audible oil overload indicators may also be fitted. To assist separation steam coils or electric heaters are fitted in the upper part of separator where high viscosity oils are to be separates additional heating coils are installed in the lower part

6.3 Turbulo Separator Attention Before initial operation, the separator must be filled with clean water To a large extent the conical plates are self-cleaning but periodically the top of the vessel should be removed and the plates examined for sludge build-up and corrosion. It is important that neither this separator nor any other types is run at over capacity, when a separator is overloaded the flow becomes turbulent, causing re entrainment of the oil and consequent deterioration of the effluent quality

6.3 Turbulo Separator Attention: • Before initial operation, the separator must be filled with clean water. • To a large extent the conical plates are self-cleaning but periodically the top of the vessel should be removed and the plates examined for sludge build-up and corrosion. • It is important that neither this separator nor any other types is run at over capacity, when a separator is overloaded the flow becomes turbulent, causing re￾entrainment of the oil and consequent deterioration of the effluent quality

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